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NO20191497A1 - A method for producing said gas separation article and use thereof - Google Patents

A method for producing said gas separation article and use thereof Download PDF

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Publication number
NO20191497A1
NO20191497A1 NO20191497A NO20191497A NO20191497A1 NO 20191497 A1 NO20191497 A1 NO 20191497A1 NO 20191497 A NO20191497 A NO 20191497A NO 20191497 A NO20191497 A NO 20191497A NO 20191497 A1 NO20191497 A1 NO 20191497A1
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NO
Norway
Prior art keywords
support
matrix
hydrogen
nitrogen
gas
Prior art date
Application number
NO20191497A
Other versions
NO347039B1 (en
Inventor
Henrik Hemmen
Linn Cecilie Sørvik
Luca Ansaloni
Thijs Andries Peters
Maria Teresa Guzman Gutierrez
Liyuan Deng
Original Assignee
Condalign As
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Filing date
Publication date
Application filed by Condalign As filed Critical Condalign As
Priority to NO20191497A priority Critical patent/NO347039B1/en
Priority to GB2118951.9A priority patent/GB2613902B/en
Priority to EP20838469.3A priority patent/EP4076711A1/en
Priority to US17/757,703 priority patent/US12303840B2/en
Priority to PCT/EP2020/087234 priority patent/WO2021123316A1/en
Publication of NO20191497A1 publication Critical patent/NO20191497A1/en
Publication of NO347039B1 publication Critical patent/NO347039B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/54—Polyureas; Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/16—Hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/18—Noble gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/24—Hydrocarbons
    • B01D2256/245—Methane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/304—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/35—Use of magnetic or electrical fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

A METHOD FOR PRODUCING SAID GAS SEPARATION ARTICLE AND USE THEREOF
TECHNICAL FIELD
The present disclosure relates to a gas separation article allowing for separation of gases in a gas mixture. The present disclosure also relates to a method for producing the gas separation article as well as use of the gas separation article for separating gases in a gas mixture.
BACKGROUND
Membranes for separation of gases in a gas mixture, i.e. gas separation membranes, are based on the physical and/or chemical interaction of the gases in the gas mixture with the membrane material. A wide variety of gas separation membranes are known and the use thereof frequently depends on the specific design of the membrane. For instance, the choice of membrane material may impact the membrane performance in terms of permeability and selectivity for specific gases allowing some gases to pass through the membrane faster than others. Further, the membrane material may comprise pores and/or further components to provide a specific gas permeability.
Gas separation membranes are used in many diverse applications such as gas purification or recovery, air separation, natural gas sweetening, vapor recovery, separation of by-products, in oil and gas related industries etc. Membrane separation technologies are considered as energy-efficient and compact solutions compared to conventional absorption–desorption technologies.
Traditional polymeric membranes have increased the commercial market for separations such as O2/N2 and CO2/CH4. These gas separation membranes comprise a polymer or mixture of polymers as membrane material and have been found to be economically and technologically useful. This stems from the low cost of polymeric membranes, and their high ductility and processability. However, there is often a limit on their performance known as the Robeson upper bound implying that there is a trade-off between selectivity and permeability.
However, the relatively low performance of commercial polymers and the sensitivity towards harsh process conditions of gas streams have demonstrated the need for development of new high-performance materials. There exists thus a need for gas separation membranes such as polymer-based separation membranes allowing for good gas selectivity and/or gas permeability for a gas mixture. Further, there exists a need for gas separation membranes allowing for separation such as improved separation of gases in a gas mixture which has not been provided by hitherto known techniques. Moreover, there is a need for manufacturing methods of such gas separation membranes.
SUMMARY
It is an object of the present disclosure to provide a method for producing a gas separation article allowing for permeation and/or selectivity with respect to separation of gases in a gas mixture. Further, it is an object of the present disclosure to provide a gas separation article allowing for permeation and/or selectivity with respect to separation of gases in a gas mixture. Moreover, it is an object of the present disclosure to provide improved permeation and/or separation of gases in a gas mixture which has not been provided by hitherto known techniques.
One or more of the above objects may be achieved by a method for producing a gas separation article in accordance with claim 1, a gas separation article in accordance with claim 8 or a use in accordance with claim 9.
Thus, the present disclosure provides a method for producing a gas separation article, said method comprising the steps of:
a) providing a matrix free from added particles, said matrix comprising:
a viscous material comprising one or more polymers, and
optionally a solvent,
b) contacting the matrix of step a) with a support comprising at least one side, said at least one side facing said matrix, thereby forming (i) a matrix side contacting the support and (ii) a matrix side opposite the side contacting the support,
c) optionally contacting the matrix side opposite the side contacting the support with an additional support, and
d) subjecting said matrix contacted with said support to one or more electric fields that is/are
substantially parallel to a plane in which the support extends, or
substantially perpendicular to a plane in which the support extends
e) fixating the viscous material so as to fixate the viscous matrix material, and
f) optionally removing the support and/or the additional support.
The matrix of the method described herein is free from added particles such as graphite particles, metal particles, ceramic particles. Additionally, the entire gas separation article may be free from particles such as added particles.
The method steps of the method described herein may be performed in consecutive order or some of the method steps may overlap. For instance, steps d) and e) may overlap so that the electric field(s) are applied during the fixating to step e).
The step of fixating of step e) may comprise or consist of curing. The curing may involve heating and/or irradiation such as irradiation with ultraviolet light and/or evaporation of a solvent. As a result, the matrix is solidified.
The gas separation article described herein may be a gas separation membrane. The gas separation membrane may comprise a porous support and/or a porous additional support. Alternatively, the gas separation membrane may be free from a support and an additional support. When the gas separation article is provided with a non-porous support and/or non-porous additional support it may be considered an intermediate for providing a gas separation membrane.
It will be appreciated that the expression “substantially parallel to a plane in which the support extends” intends that the electric field lines are parallel to a plane in which the support extends and/or that the electric field lines, such as 50 % or more of the electric field lines, deviate by 10 degrees or less from a plane in which the support extends.
Further, it will be appreciated that the expression “substantially perpendicular to a plane in which the support extends” intends that the electric field lines are perpendicular to a plane in which the support extends and/or that the electric field lines, such as 50 % or of the electric field lines, deviate by 10 degrees or less from a plane that is perpendicular to a plane which the support extends.
The one or more polymers of the viscous material may be one or more of the following: polyurethane, polyether block amide, polyimide, polydimethylsiloxane, polyethylene glycol, ethylene acrylic elastomer, perfluoropolymers, polymerized ionic liquids, polysulfone, polyamide, polyvinylamine, polyallylamine, polyethyleneimine, cyanoacrylates, rosen acrylates, ester acrylates, urethanes acrylates, silicone acrylates, amine acrylates, epoxy acrylates, epoxide groups.
The support and/or the additional support may be porous. Further, the support and/or additional support may comprise one or more of the following: polyethylene terephthalate (PET), polysiloxanes, polydimethylsiloxane (PMDS), poly(1-trimethylsilyl-1-propyne) (PTMSP), polyacrylonitrile (PAN), perfluoropolymers, perfluoroethers (PTFE), polyvinylidene fluoride (PVDF), polyether sulfones (PES), polysulfones (PSU), polyimides (PI), polyetherimides (PEI), polyamides, polyamideimides, polycarbonates (PC), polyesters, polyether ether ketone (PEEK), polye(ethylene oxide) (PPO), polyacrylates, polymethacrylates, cellulose acetate, polyethylene (PE), polypropylene (PP) polytetrafluoroethylene (PTFE), polymethylpentene (PMP) and copolymers thereof.
The present disclosure also provides a gas separation article obtained or obtainable by the method as described herein.
Surprisingly, it has been found that the method described herein allows for providing a gas separation article providing increased permeability and/or selectivity of gases when the gases or gas mixtures containing gases are exposed to the gas separation article as compared to a corresponding gas separation article in which the polymer has not been exposed to an electric field.
While not wishing to be bound by any specific theory, exposing the matrix to one or more electric fields before and optionally during the fixating of the matrix may cause the backbones of the polymer chains to align with the direction of the electric field lines. Thus, for one or more electric fields that are parallel with a plane in which a support extends the backbones of the polymer chains may be parallel with said one or more electric fields and said plane. In the same way, for one or more electric fields that are perpendicular with a plane in which a support extends the backbones of the polymer chains may be perpendicular with said one or more electric fields and said plane.
It will be appreciated that the one or more electric fields may be created by application of an interdigitated electrode as shown in Figure 1 providing one or more electric fields that is/are parallel with the plane in which the support extends. In this document, this arrangement is referred to as in-plane arrangement. Further, it will be appreciated that when the one or more electric fields may be created by application of a top electrode and a bottom electrode as illustrated in Figure 2 providing one or more electric fields that is/are perpendicular with the plane in which the support extends. In this document, this arrangement is referred to as through plane arrangement.
As used herein, a viscous material intends a material that may have a viscosity of about 200cP or more, such as about 1000cP, 35000cP or about 40000cP. As an example, the viscous matrix may have a viscosity within the range of about from 200cP to about 40000cP. In this document, cP stands for centipoise. The viscous material may be easily coatable to a thin film. The viscosity must not be too high so that a pump cannot pump it, and not too thin (low viscosity) to not leak from everywhere or hold together as a coating.
There is also provided a use of a gas separation article as described herein for separation of gases in a gas mixture comprising one of more of the following:
oxygen and nitrogen,
carbon dioxide and methane,
carbon dioxide and natural gas,
carbon dioxide and biogas,
hydrogen sulfide and methane,
hydrogen sulfide and natural gas,
hydrogen sulfide and biogas,
helium and nitrogen,
hydrogen and methane,
helium and methane,
helium and hydrogen,
hydrogen and carbon dioxide,
helium and carbon dioxide,
nitrogen and methane,
hydrogen and nitrogen,
hydrogen and carbon monoxide.
propene and nitrogen,
ethylene and nitrogen,
ethylene and argon,
vapor and natural gas.
For instance, there is provided a use a gas separation article as described herein for separation of gases in a gas mixture comprising one of more of the following: carbon dioxide and natural gas
oxygen and nitrogen,
hydrogen and nitrogen,
vapor and natural gas,
hydrogen and carbon dioxide.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a process for producing a gas separation article as described herein comprising use of an interdigitated electrode. The electric field generated by the electrode is parallel to the plane in which the support extends. The use of an additional support is also shown.
Figure 2 shows a process for producing a gas separation article comprising use of a top electrode and a bottom electrode. The electric field generated by the electrodes is perpendicular to the plane in which the support extends. The use of an additional support is also shown.
The disclosure is further illustrated by the following non-limitative Examples.
EXAMPLES
Abbreviations
STP Standard Temperature and Pressure such as according to the International Union of Pure and Applied Chemistry (IUPAC) and the National Institute of Standards and Technology (NIST).
atm atmosphere
VS versus
Effect of electric field exposure on the gas permeation performance
The effect of electric field exposure on the gas permeation performance of a commercially available UV-curable acrylated polyurethane was tested (Norland optical adhesive 65). The samples were made on a roll to roll set up (R2R). Both not aligned and aligned samples were made at the same conditions. The aligned samples were either aligned inplane or through-plane, using the electrode geometries in figure 1 and figure 2 respectively. No particles were added to the polymer. The thickness was set to 45 µm for all the samples.
Single gas permeation test for N2 and CO2 were performed at 23 °C, using a conventional constant pressure/variable volume method. Prior to the test the membranes were dried under vacuum at 45 °C overnight. The upper pressure was kept constant at 2.0 bar for all the gases.
The results presented in Table 1 below show a clear difference in gas transport properties between not aligned polymer membranes (NAL) compare with the membrane exposed to electric field, either through-plane aligned (TPA) or in-plane aligned (IPA);
● P (CO2); TPA > NAL > IPA
● α(CO2/N2); IPA > TPA > NAL
The TPA film shows better performance in terms of permeability, whereas the IPA film has the best selectivity.
Table 1: Pure gas permeation results for polymeric membranes made from NOA 65.
It was observed that through plane alignment significantly increased both the CO2 permeability (P), and the CO2/N2 selectivity. In plane alignment also increases CO2/N2 selectivity but with a decreased CO2 and N2 permeability.

Claims (10)

1. A method for producing a gas separation article, said method comprising the steps of:
a) providing a matrix free from added particles, said matrix comprising:
a viscous material comprising one or more polymers, and
optionally a solvent,
b) contacting the matrix of step a) with a support comprising at least one side, said at least one side facing said matrix, thereby forming (i) a matrix side contacting the support and (ii) a matrix side opposite the side contacting the support,
c) optionally contacting the matrix side opposite the side contacting the support with an additional support, and
d) subjecting said matrix contacted with said support to one or more electric fields that is/are
substantially parallel to a plane in which the support extends, or
substantially perpendicular to a plane in which the support extends
e) fixating the viscous material so as to fixate the viscous matrix material, and f) optionally removing the support and/or the additional support.
2. The method according to claim 1, wherein the one or more polymers of the viscous material is one or more of the following: polyurethane, polyether block amide, polyimide, polydimethylsiloxane, polyethylene glycol, ethylene acrylic elastomer, perfluoropolymers, polymerized ionic liquids, polysulfone, polyamide, polyvinylamine, polyallylamine, polyethyleneimine, cyanoacrylates, rosen acrylates, ester acrylates, urethanes acrylates, silicone acrylates, amine acrylates, epoxy acrylates, epoxide groups.
3. A method according to claim 1 or 2, wherein the support and/or the additional support is porous.
4. The method according to any one of the preceding claims, wherein the support and/or the additional support comprises one or more of the following: polyethylene terephthalate (PET), polysiloxanes, polydimethylsiloxane (PMDS), poly(1-trimethylsilyl-1-propyne) (PTMSP), polyacrylonitrile (PAN), perfluoropolymers, perfluoroethers (PTFE), polyvinylidene fluoride (PVDF), polyether sulfones (PES), polysulfones (PSU), polyimides (PI), polyetherimides (PEI), polyamides,
polyamideimides, polycarbonates (PC), polyesters, polyether ether ketone (PEEK), polye(ethylene oxide) (PPO), polyacrylates, polymethacrylates, cellulose acetate, polyethylene (PE), polypropylene (PP) polytetrafluoroethylene (PTFE), polymethylpentene (PMP) and copolymers thereof.
5. The method according to any one of the preceding claims, wherein the fixating of step e) comprises or consists of curing.
6. The method according to any one of the preceding claims, wherein the gas separation article is free from added particles.
7. The method according to any one of the preceding claims, wherein the gas separation article is a gas separation membrane.
8. A gas separation article obtainable by the method according to any one of the preceding claims.
9. Use of a gas separation article according to any one of claims 8 for separation of gases in a gas mixture comprising one of more of the following:
oxygen and nitrogen,
carbon dioxide and methane,
carbon dioxide and natural gas,
carbon dioxide and biogas,
hydrogen sulfide and methane;
hydrogen sulfide and natural gas,
hydrogen sulfide and biogas,
helium and nitrogen,
hydrogen and methane,
helium and methane,
helium and hydrogen,
hydrogen and carbon dioxide,
helium and carbon dioxide,
nitrogen and methane,
hydrogen and nitrogen,
hydrogen and carbon monoxide.
propene and nitrogen,
ethylene and nitrogen,
ethylene and argon,
vapor and natural gas.
10. Use according to claim 9, wherein the gas mixture comprises one or more of the following:
carbon dioxide and natural gas
oxygen and nitrogen,
hydrogen and nitrogen,
vapor and natural gas,
hydrogen and carbon dioxide.
NO20191497A 2019-12-19 2019-12-19 A method for producing a gas separation article and use thereof NO347039B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO20191497A NO347039B1 (en) 2019-12-19 2019-12-19 A method for producing a gas separation article and use thereof
GB2118951.9A GB2613902B (en) 2019-12-19 2020-12-18 A method for producing a gas separation article and use thereof
EP20838469.3A EP4076711A1 (en) 2019-12-19 2020-12-18 A method for producing a gas separation article and use thereof
US17/757,703 US12303840B2 (en) 2019-12-19 2020-12-18 Method for producing a gas separation article and use thereof
PCT/EP2020/087234 WO2021123316A1 (en) 2019-12-19 2020-12-18 A method for producing a gas separation article and use thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20191497A NO347039B1 (en) 2019-12-19 2019-12-19 A method for producing a gas separation article and use thereof

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NO20191497A1 true NO20191497A1 (en) 2021-06-21
NO347039B1 NO347039B1 (en) 2023-04-24

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EP (1) EP4076711A1 (en)
GB (1) GB2613902B (en)
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WO (1) WO2021123316A1 (en)

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CN113893709B (en) * 2021-10-09 2022-11-29 中国科学院过程工程研究所 Method for separating ammonia carbon by ionic liquid membrane
CN114749040A (en) * 2022-03-03 2022-07-15 华南理工大学 SPEEK/PEG/PVDF gas regulation composite membrane, preparation and application thereof
JP2024170940A (en) * 2023-05-29 2024-12-11 セイコーエプソン株式会社 Gas Separation Membrane

Citations (5)

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Publication number Priority date Publication date Assignee Title
US5034130A (en) * 1989-04-07 1991-07-23 Nippon Oil And Fats Co., Ltd. Method for producing a composite membrane and the composite membrane
KR20080083805A (en) * 2007-03-13 2008-09-19 주식회사 엘지화학 Polymer film manufacturing method using electric field
US20110220574A1 (en) * 2008-05-29 2011-09-15 Olgica Bakajin Membranes With Functionalized Carbon Nanotube Pores For Selective Transport
EP3369474A1 (en) * 2017-03-01 2018-09-05 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Isoporous block copolymer membranes in flat sheet geometry
JP2018192441A (en) * 2017-05-19 2018-12-06 Dic株式会社 Gas separation membrane, laminate, and gas separation module

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Publication number Priority date Publication date Assignee Title
US6479007B1 (en) 1999-09-16 2002-11-12 University Technology Corporation Apparatus and method for controlling pore size in polymeric membranes and thin films
AU2003237581A1 (en) 2002-07-04 2004-01-23 Ben-Gurion University Of The Negev Highly conductive ordered ion exchange membranes
JP5679253B2 (en) * 2009-05-26 2015-03-04 国立大学法人東京工業大学 Self-supporting polymer thin film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034130A (en) * 1989-04-07 1991-07-23 Nippon Oil And Fats Co., Ltd. Method for producing a composite membrane and the composite membrane
KR20080083805A (en) * 2007-03-13 2008-09-19 주식회사 엘지화학 Polymer film manufacturing method using electric field
US20110220574A1 (en) * 2008-05-29 2011-09-15 Olgica Bakajin Membranes With Functionalized Carbon Nanotube Pores For Selective Transport
EP3369474A1 (en) * 2017-03-01 2018-09-05 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Isoporous block copolymer membranes in flat sheet geometry
JP2018192441A (en) * 2017-05-19 2018-12-06 Dic株式会社 Gas separation membrane, laminate, and gas separation module

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Publication number Publication date
US12303840B2 (en) 2025-05-20
EP4076711A1 (en) 2022-10-26
GB2613902A (en) 2023-06-21
US20230022574A1 (en) 2023-01-26
GB2613902B (en) 2024-02-07
GB202118951D0 (en) 2022-02-09
NO347039B1 (en) 2023-04-24
WO2021123316A1 (en) 2021-06-24

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